The asymmetric gravity field measured by the Juno spacecraft has allowed the estimation of the depth of Jupiter's zonal jets, showing that the winds extend approximately 3,000 km beneath the cloud level. This estimate was based on an analysis using a combination of all measured odd gravity harmonics, J₃, J₅, J₇, and J₉, but the wind profile's dependence on each of them separately has yet to be investigated. Furthermore, these calculations assumed the meridional profile of the cloud‐level wind extends to depth. However, it is possible that the interior jet profile varies somewhat from that of the cloud level. Here we analyze in detail the possible meridional and vertical structure of Jupiter's deep jet streams that can match the gravity measurements. We find that each odd gravity harmonic constrains the flow at a different depth, with J₃ the most dominant at depths below 3,000 km, J₅ the most restrictive overall, whereas J₉ does not add any constraint on the flow if the other odd harmonics are considered. Interior flow profiles constructed from perturbations to the cloud‐level winds allow a more extensive range of vertical wind profiles, yet when the meridional profiles differ substantially from the cloud level, the ability to match the gravity data significantly diminishes. Overall, we find that while interior wind profiles that do not resemble the cloud level are possible, they are statistically unlikely. Finally, inspired by the Juno microwave radiometer measurements, assuming the brightness temperature is dominated by the ammonia abundance, we find that depth‐dependent flow profiles are still compatible with the gravity measurements.

中文翻译：

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符合Juno不对称重力测量的木星流动结构范围

朱诺航天器测量的不对称重力场可以估算木星纬向射流的深度，这表明风在云层以下延伸了约3,000 km。此估计基于对所有测得的奇重力谐波J ₃，J ₅，J ₇和J ₉的组合进行的分析。，但是风廓线分别对它们的依赖性尚待研究。此外，这些计算假设云层风的子午线轮廓延伸到深度。但是，内部射流轮廓可能会与云层的轮廓有所不同。在这里，我们详细分析了木星深喷射流可能与子午线和垂直结构相匹配的重力测量结果。我们发现，每个奇重力谐波都将流动限制在不同的深度，其中J ₃在3,000 km以下的深度处占主导地位，J ₅总体上受限制最大，而J ₉如果考虑其他奇次谐波，则不会对流量增加任何约束。从扰动到云层风构造的内部流廓线允许更大范围的垂直风廓线，但是，当子午线廓线与云层高度明显不同时，匹配重力数据的能力就会大大降低。总体而言，我们发现虽然内部风廓线不像云层高是可能的，但从统计学上讲不太可能。最后，受朱诺微波辐射计测量的启发，假设亮度温度由氨的丰度决定，我们发现依赖深度的流场仍然与重力测量兼容。